placed on the stationary phase of the chromatograph. As a substance is introduced‚ it begins to move‚ and its molecules adhere to the surface of stationary phase‚ before being pulled back into the substance. This exchange of molecules is known as adsorption‚ since the molecules are not permanently attached to‚ or different way‚ with some components taking slightly longer than others. The compounds can
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Wetlands are areas of land that are wet‚ flooded either permanently or seasonally and where land retains water for long enough to allow the development of characteristics soils‚ plants and animals. Or Areas of marsh‚ fen‚ peat land or water‚ whether natural or artificial‚ permanent or temporary‚ with water that is static or flowing‚ brackish or salt‚ including areas of marine water the depth of which at low tide does not exceed six meters‚ (Ramsar Convention 2009). 1.
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What is water purification? Water purification generally means freeing water from any kind of impurity it contains‚ such as contaminants or micro organisms. Water purification is not a very one-sided process; the purification process contains many steps. The steps that need to be progressed depend on the kind of impurities that are found in the water. This can differ very much for different types of water. In which ways is polluted water treated? Settling Before the purification process begins some
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C5-C30 n-alkanes were used to made retention indices (RI) and 2‚4‚6-trimethylpyridine (TMP‚ purity 99 %‚ I.S.) was used to internal standard which were purchased from Sigma-Aldrich Trading Co.‚ Ltd (Shanghai‚ China). Mono Trap (MT) (Diameter 2.9 mm ×Length 5 mm‚ Hole Diameter 1 mm) (ODS‚ silica gel and activated carbon) was used for headspace MMSE was obtained from GL Science (Shinjuku‚ Tokyo‚ Japan). Extraction of volatile compounds Fish sauce samples were extracted volatile compounds by Monolithic
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Balanced Diet for Athletes A balanced diet is a diet that provides all the essential nutrients in sufficient quantity and in the correct proportions to promote good health. The six main classes of nutrients are carbohydrate‚ fat‚ protein‚ vitamins‚ minerals‚ and water. Good nutrition is essential for optimal performance of athletes. The nutritional requirements differ among athletes and these depend on their age‚ body size‚ and intensity of their sport or training programme. In athletes‚ good
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1. Introduction The application of large number of pesticides are used in modern agriculture for control various insect pest population. The varieties and consumption of pesticides have been increasing as increased human population and crop production therefore misuses of pesticides become more and more serious problem as environmental point of view (Sitaramaraju et al. 2014). The increasing amount of crop productivity is not achieved without risk of human health and environment. The repeated application
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bottom of the plate is in the liquid. This liquid‚ or the eluent‚ is the mobile phase‚ and it slowly rises up the TLC plate by capillary action. The underlined principle is that the components will differ in solubility and in the strength of their adsorption to the adsorbent and some components will be carried farther up the plate than
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1. EGG INOCULATION The fertile hen’s egg can be used to cultivate and propagate various types of viruses. Because of the ability to alter their tropism and to adapt to a new host species‚ many viruses become capable of growing in chick embryo tissues wherein they frequently attain a much higher concentration than in the tissues of the natural host. STRUCTURE OF AN EGG The extra-embryonic membranes of the chick embryo arise from three germinal layers: the endoderm‚ mesoderm and ectoderm
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Catalyst Manufacturing Science and Engineering Consortium (CMSEC) Rutgers University New Jersey‚ U.S.A. Rutgers Catalyst Manufacturing Science and Engineering Consortium (CMSEC) Rutgers Catalyst Consortium since 2003 While a large segment of the US industry‚ including the petroleum‚ chemical‚ pharmaceutical‚ automotive‚ and energy industries makes and/or uses catalysts‚ there has been no academic program focusing on the operations required to make catalytic materials. Thus‚ catalyst manufacturing
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Occupational Hazards in Oil & Gas Industry Occupational Hazards in Oil & Gas Industry Dr Salahedin Bendak Nauman SharifU00015925 Mohammad Alghafri U00017849 15-May-12 Dr Salahedin Bendak Nauman SharifU00015925 Mohammad Alghafri U00017849 15-May-12 Design for Environment & Safety Engineering. Design for Environment & Safety Engineering. Table of Contents What is oil and gas industry? ………………………………….…2 How oil and gas is drilled for? ……………………………………2
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